Eciton mexicanum subsp. argentinum Borgmeier, 1955: 259, pl. 55, figs. 7, 11; pl. 84, fig. 2 (s.q.) ARGENTINA (Chaco). Neotropic.

Primary type information: Primary type material: holotype queen. Primary type locality: Argentina: Chaco, Presidente Roque Sáenz Peña, 12.x.1931 (Ohmeheider). Primary type depository: “Museum von Buenos Aires” (probably MACN). Secondary type information: Secondary type material: 3 paratype workers. Secondary type locality: same as for holotype. However, MZSP houses 1 paratype worker (MZSP0082289).